Electric locomotive truck



March 8, 1932. E, M. ssl-ummmv 1,848,908

ELECTRIC LOCOMQTIVE TRUGK Filed Oct. 4, 1930 2 Sheets-Sheet 1 March 8, 1932. y E M SHANNON 1,848,908

ELECTRIC LOCOMOTTVE TRUCK F'led Oct. 4, 1930 2 Sheets-Sheet 2 Patented Mar. 8, 10932K* PATENT: QFIICE1]w y nLLwoon M "sHA'NNoN, 0F BALA, PENNSYLVANIA- ELECTRICl 'LOCOMOTIVE TRUCK-g.

- .applieationv med amber4 4, 1930.," seiiaiNbiAsaMsf Y y MyV inventionf relates to certain improvements 1n swing trucks of the type having two wheelsand outside bearings, Vand which are particularly adapted to electric locomotives,

but it will be understood that the truck can 'Y be mounted under other rolling stock as well.

One object of the invention is to make the frame of this truck as a substantial integral casting. Y r r Another object of the invention is to mount semi-elliptic springs directly on the Vaxle boxes and klocate these springs between two members of the outer portion of the frame` of the truck.

A further object of the invention is to V- so Y design the bolster that the. lower bearing for the swing links will be located directly under the upper bearing for the links, which are carried by the transverse members of the .main Jframe.

The invention also relates to details of construction which will be described hereinafter.

In the accompanying drawings: Fig. 1 1s a planview;

line 2 2, Fig. 1;

Fig. 3 is a longitudinal sectionalview on the line 3 3, Fig. 1;`

Fig. 4 is a longitudinal sectional view on the line 444, Fig. 1;

Fig. 5 is a sectional plan view of a portion Y of the bolster ontheline'-, Fig.4;

Fig. 6 is a perspective view of one of the links; and f Fig. 7 is a sectional view of one of the Y p n I Y ofthe links, making a 'substantial' Structure. framev links.

Referring to the drawings, 1 is the of' the truck, made in a single casting and consisting of two transverse members 2 2,

spaced apart, and in the space is the bolster 3. The two end sections 4 and 5at each side of the truck, are spaced apart for the wheels 6, which are mounted on the vaxles 7, the wheels and axles being shown by dottedv lines in Figs. 1 and 2.

VAt one end of the frame 1 are lugs 1a,to

i which is attached the radiusbar 8, by bolts 9, but in ,some instances the radius bar may be made integral with the frame 1, ifdesired.

Each end member 5V consists of twov sections Logcatedmbetweenlthe two sections is asemielliptical springv 10, the central'strap 11 lof thek spring resting upon the boxes'12, located of each end member 5, and the outer ends 'of each spring are 'connected to thel said"` end member by links 14, which have keys resting in seats 16 on the underside of the web 17,-' which Jforms anintegral part of the end mem! ber v5. One ltype of axle box` is shown, but

it will bev understood that any suitable type of boxma'y'be vusedwithout departing from the essential'features of theinvention.A `The 5@ Siee'd apart and. preferably Y hannah rshaped in cross section, as shown in Fig; Q

they are spaced apart by' a Sleeve19,*throughv whichAt-he bolt extends.'

" V.The bolster is shown in Fig. 4, and (hasa l center bearing20, and the two end members l 21 ofthe bolster extend downwards through Y the iframe 1, between the' iront `and frear'V transverse members 2and thejlower ends 22 of these members extend Vunder the transverse v Fig. 2 is a transverse sectional view on the 1.members2 off'theframe, andare connected to`l r Vthese members 2 by links 23 vofthe type shown slots.' These pinsvlare spaced apart so as :to form bearings fortheportions 26 of the links;

"23. n the lower portion of each link 23'is an*V Fig. 6. The transvers'emembers 2 are slotl i 1 ted at 24, and two'A pins '25 extend across theV so V opening 27 for the pivot pin 28. The pivot In order to counteract h.the strainv on the f members 21 ot the bolster, tie bolts29 ex-` tend `from one `,web 30 to the othery :in the llower, portion lofthe, pedestahandthese bolts pass through tubular members 31. By this arrangement the bolster can be madercomparatively light, lyetprwill be sufciently strong. Y

. On eachhof `the transverse members 2i are4 lwe ar'plates32, which arev opposite the Vwear i suraces ofthe bolster. Each llnkismade as shown in Figs. 6 and 7, and has tworeceptaclesp34 and 35 l.for hibricant.v Passages 36 lead lfrom the receptacle 34 to thef'bf-raringv` Y between pedes'tals 13, forming integral parts' l l pedestalsfllare connectedby bolts 18,` and surface of the links for the pins 25, and the receptacle 35 has a passage 37, which communicates with the bearing for the lower pin 28, thus insuring the lubricating of the bearing surfaces of the links.

I claim:

l. The combination in a two-wheel radial truck, of an axle and wheels two transverse members spaced apart and connected at each end by two side members, said side members being spaced apart for the wheels of: the truck; a bolster located in the space between the two transverse members, the lower portions of the bolster extendingbelow thev axle and under the transverse members; links suspended from 'the transverse members and connected to the extended portions of the bolster; and detachable tie bolts extending across the lower portion of the bolster and under the axle and connecting` the lower ends of the bolster.

v 2. The combination in a two-wheel radial truck, of an integral frame consisting of two transverse members spaced apart; two members at each side of the frame, the two side members being spaced apart for the wheels of the truck, the outside side members being bifurcated and having pedestals; boxes mounted in the pedestals; an axle extending into the boxes; a semi-elliptical spring mounted in each outside bifurcated side member of the frame, each spring bearing upon an axle box, the links connecting the outer ends of the springs withthe frame; and a bolster hung from said frame.

3. An integral 4frame for a" two-wheel radial truck, Vconsisting of two transverse 'members spaced apart; inner side members at each side of the truck;.connectedto said transverse members; andtwo outside members, one at each side or' the truck and connected to the inside members at their ends, said outside members being spaced from the inside members to accommodate the wheels of the truck, each outside member having two longitudinal sections spaced apart for semielliptical springs. y

l. The combination ina two-wheel radial truck, of an integral frame having two transverse members spaced apart, and connected at their outer ends by two inner side members; anouter side member at each side of cant receptacle in tlie lower portion of the link, above the lower bearing; and a passage forming a communication between the lastmentioned receptacle and the lower bearing. ELIIWOOD M; SHANNON.

the truck, spaced from the inner side mem- Y bers to allow wheels to extend into the spaces between the side members, each outer side member having pedestals; an axle box mounted between each pair of pedestals; a seini-elliptical spring mounted in the outer side member and bearing upon a box; links vconnectingthe ends of the springs with the outer side members; a bolster having a centerbearing at its upper end, and downwardly extending members projecting under the l transverse members at their lower ends four pairs of pinsl on the transverse members of JOI: 

